BLG 311 Study Guide - Cellular Respiration, Trachea, Umbilical Cord

Fetal pig anatomy and physiology, Detailed explanations would bevery aprecciated!

1. The presence of the allantoic duct in the umbilicus providesa clue regarding how the functional roles of extraembryonicmembranes in placental mammals have been modified evolutionarilyfrom their roles in chick development. Explain!

2. What function does theumbilical cord play in a fetal mammal? To what does it connect?What are the functional roles of the umbilical artery and vein (andwhich carries more oxygen)?

3. From which embryonic germ layer does the coelomic lining(peritoneum) arise? By what process do the coelomic cavitiesdevelop?

4. How does a fetal pig obtainoxygen? What triggers the changeover to

Explain how the structure and function are linked together for the following organs of the digestive system:

1) Mouth

2) Oesophagus

3) Stomach

4) Small intestine

5)Large intestine

6)Rectum

7) Anuss

The GI tract is composed of many organs and structures that store, digest, move and expel food. Each segment has a specific function with the purpose of providing nutrients to the body. In order to perform these functions, structural modifications have been made to the digestive system. Identify at least two organs in the digestive system which have been modified – identify the organ, the modification and the function performed. What do you think the impact on digestion and the body would be if either the stomach, small intestine or large intestine had to be fully or partially removed?